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/**
* @file llviewerjoint.cpp
* @brief Implementation of LLViewerJoint class
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include "llviewerprecompiledheaders.h"
#include "llviewerjoint.h"
#include "llgl.h"
#include "llrender.h"
#include "llmath.h"
#include "llglheaders.h"
#include "llvoavatar.h"
#include "pipeline.h"
static const S32 MIN_PIXEL_AREA_3PASS_HAIR = 64*64;
//-----------------------------------------------------------------------------
// LLViewerJoint()
// Class Constructors
//-----------------------------------------------------------------------------
LLViewerJoint::LLViewerJoint() :
LLAvatarJoint()
{ }
LLViewerJoint::LLViewerJoint(const std::string &name, LLJoint *parent) :
LLAvatarJoint(name, parent)
{ }
//-----------------------------------------------------------------------------
// ~LLViewerJoint()
// Class Destructor
//-----------------------------------------------------------------------------
LLViewerJoint::~LLViewerJoint()
{
}
//--------------------------------------------------------------------
// render()
//--------------------------------------------------------------------
U32 LLViewerJoint::render( F32 pixelArea, BOOL first_pass, BOOL is_dummy )
{
stop_glerror();
U32 triangle_count = 0;
//----------------------------------------------------------------
// ignore invisible objects
//----------------------------------------------------------------
if ( mValid )
{
//----------------------------------------------------------------
// if object is transparent, defer it, otherwise
// give the joint subclass a chance to draw itself
//----------------------------------------------------------------
if ( is_dummy )
{
triangle_count += drawShape( pixelArea, first_pass, is_dummy );
}
else if (LLPipeline::sShadowRender)
{
triangle_count += drawShape(pixelArea, first_pass, is_dummy );
}
else if ( isTransparent() && !LLPipeline::sReflectionRender)
{
// Hair and Skirt
if ((pixelArea > MIN_PIXEL_AREA_3PASS_HAIR))
{
// render all three passes
LLGLDisable cull(GL_CULL_FACE);
// first pass renders without writing to the z buffer
{
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
triangle_count += drawShape( pixelArea, first_pass, is_dummy );
}
// second pass writes to z buffer only
gGL.setColorMask(false, false);
{
triangle_count += drawShape( pixelArea, FALSE, is_dummy );
}
// third past respects z buffer and writes color
gGL.setColorMask(true, false);
{
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
triangle_count += drawShape( pixelArea, FALSE, is_dummy );
}
}
else
{
// Render Inside (no Z buffer write)
glCullFace(GL_FRONT);
{
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
triangle_count += drawShape( pixelArea, first_pass, is_dummy );
}
// Render Outside (write to the Z buffer)
glCullFace(GL_BACK);
{
triangle_count += drawShape( pixelArea, FALSE, is_dummy );
}
}
}
else
{
// set up render state
triangle_count += drawShape( pixelArea, first_pass );
}
}
//----------------------------------------------------------------
// render children
//----------------------------------------------------------------
for (child_list_t::iterator iter = mChildren.begin();
iter != mChildren.end(); ++iter)
{
LLAvatarJoint* joint = dynamic_cast<LLAvatarJoint*>(*iter);
F32 jointLOD = joint->getLOD();
if (pixelArea >= jointLOD || sDisableLOD)
{
triangle_count += joint->render( pixelArea, TRUE, is_dummy );
if (jointLOD != DEFAULT_AVATAR_JOINT_LOD)
{
break;
}
}
}
return triangle_count;
}
//--------------------------------------------------------------------
// drawShape()
//--------------------------------------------------------------------
U32 LLViewerJoint::drawShape( F32 pixelArea, BOOL first_pass, BOOL is_dummy )
{
return 0;
}
// End
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